Portion of a shoe upper



FIG. 1 is a front perspective view of a portion of a shoe upper showing my new design;

FIG. 2 is a side view of one side thereof;

FIG. 3 is a rear view thereof; and,

FIG. 4 is a top view thereof.

The uneven broken line immediately adjacent to the shaded area represents a portion of an unclaimed boundary of the design. The uneven broken line showing the sole and the remainder of the shoe upper is for illustrative purposes only and forms no part of the claimed design. The uneven broken lines within the shaded area showing unclaimed features of the upper are for illustrative purposes only and form no part of the claimed design. The contrast in shading represents a change in material, texture or color. 

The ornamental design for a portion of a shoe upper, as shown and described. 